monogram
noun [ C ] uk/ˈmɒn.ə.ɡræm/ us/ˈmɑː.nə.ɡræm/
（常由姓名首字母组成、缝在或印在衣物等上的）交织字母，花押字
a symbol, usually formed from the first letters of a person's names joined together, that is sewn or printed on clothes or other possessions
handkerchiefs/towels with his monogram in the corner 角上有他姓名首字母花押字的手帕／毛巾